php Lecture -11(Loop)

hey guys what's going out and square ticking and in this lecture, we're going

to learn about the beach for if loop(Dallas Website Development) the for each loop is used to look through and associate embrace so inside the break is here we have our so she to a

follow that by the going as and then we have our Niki which we can start

inside of a key variable full so that by the rocket operator and then the

risky value which we can story people called value now the key and value

variables can be named anything as long as you remember that this one refers

to the and that this one refers to the risk of out for you and just to

review this is what they're so she to a very looks like the key made with

refer to them in this example and the value variable would refer to the key

 the value which is twenty-three so that's the syntax of the for each flip now

the loop is going to end when the final key valley Paris it's so in our

the example here one german forty-two key valley there has been reached the loop

is going to end [NOISE] that's it for the syntax now let me show you a

a practical example I'm going to go ahead and create a new era here and of

animals and always going to be is by having animal names along with this

sounds those animal meaning those the more make so I'm going to create from

bad as [UM] ~~~~~~~ [COUGH] lawyers [UM] of ads some biennials care [COUGH]

health and hunger and culture [SMACK] was streamed the animal named here is

the key and the area value is the sound that this animal makes so I'm going

to go ahead and looked through the animals a now [UH] if you can see I made

my variables name and sound because it makes sense inside of our animals we

will have the animal name and this is what the names are referring to its

referring to their the key of the area and the sound is your for into the

valley of the rain so if I these two here and I use a space that can cat age

you together and then at the and I'm going to use the art make it look nice

or this is exactly was going to print out they're going to print out the

animal name and then space and the sound which the animal makes so as you

can see here there or is expected we're looking through their so she too

marry and it springs now at the art and the arrow value now I'm an all turn

as a way to write this would be as follows you can just use the associate

of a raw name and since who have access to the key this whole give us the

valley of the right and so now we have all the valley is not a way to write

this is to completely avoid this part and if we wanted to just print out the

arrow values who can do so in this way as well so this the same exact thing

as before so that's it for this example and now I want to show you something

else I want to show you how to money my area valleys by a reference so for

an example he found that renamed numbers and was going to keep the short and

put find numbers and year and then I looked through this area numbers are in

the short version because only need values were going to print out this radio

the most and the numbers if all the name and so right now has just printing

out there a and we have a key we have a value have a key you have a valley

so you can see that the all the valley as one two three four five now if we

wanted to directly modify those valleys here's what we can do and this is

called dietary valleys by the reference he would simply put the emperor sense

and from the air key and then we can say something like numbers equals i

mean number eagles I'm very times to and that would modify the three

a valley is so now all the all the valleys inside of the area would be doubled

so if I print out the area down here now